Water-tube boiler



(No Model.) 3 Shets-Sheet 1.

E. MOORE. WATER TUBEBOILER,

o. 338,429. Patented Mar. 23, 1886.

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(No Model.) 3 Sheets-Sheet 2.

E. J. MOORE.

WATER TUBE BOILER.

No. 338,429. Patented Mar. 3, 1886.

-WI NEEgEg 1 V 4%;&0M@ fl N. PEIERS. Photo-Lithographer Wzlhington, nv a (No Model.) 3 Sheets- Sheet 3 E. J. MOORE.

WATER TUBE-BOILER. No. 338,429. Patented Mar. 23, 1886.

N. PETERS, PhoIo-Liflwgnpher. Washinglon, Dv C.

, UNITED STATES PATENT OFFICE.

EDWARD J. MOORE, OF BALTIMORE, MARYLAND.

WATER-TUBE BOELER.

FZiPECIFICATION forming part of Letters Patent No. 338,429, dated lidareh 23, 1886.

Application filed September 7, 1855. Serial No. 176,358. (No model.)

To all whom it may concern.-

Be it known that I, EDWARD J. MOORE, of the city of Baltimore and State of Maryland, have invented certain Improvements in Water- Tube Boilers, of which the following is a specification.

This invention consists, first, in connecting the headers of the boiler to the drum by means of saddles having circular or-cylindrieal necks or nozzles, in which the tubes or nipples are expanded from the upper side, thus dispensing with the usual front closing-plates. One saddle may be used at one end of the boiler and an ordinary header at the other, or two saddles can be employed, secured to the under side of the drum or to the drum-heads.

The said invention consists, secondly, in suspending the boiler by means of transverse girders supported by columns resting on piers, which are covered by flanged plates to prevent dislocation of the brick-work of which the said piers are built.

The said invention consists, thirdly, in hanging the boiler from each side of the drum by means of links and bolts, whereby contraction and expansion are admitted of without any strain being placed on the boiler-setting.

The said invention consists, fourthly, in employing in connect-ion with the triangular outer closing-plates in the headers inner ones of a similar shape, to which the central bolts are attached, the said bolts merely passing through the outer plates, which are held by nuts. By this means two water and steam tight joints are produced.

The said invention consists, fifthly, in providing the central partition-wall of a watertube boiler with an opening therein for cleaning purposes, and in fitting the same with a door to close the said opening when the same is not use. This opening is located opposite to the side cleaning-doors.

The said invention consists, sixthly, in connecting the longitudinal and cross drums by means of expanded nipples, whereby the said drums can be shipped separately and easily connected in the erection of the boiler.

The said invention consists, 'seventhly, in forming the outer walls of the boiler mainly of pipes or tubes which are placed close together and united to the drums by means of nipples of much smaller diameter, whereby proper spaces are maintained between the holes used for the reception of the nipples.

The said invention consists, eighth] y, in certain details of construction of the various parts of the boiler, as will hereinafter fully appear.

In the further description of the said invention which follows referenceis made to the ac companying drawings, forming a part hereof, and in which- Figure I is a sectional side elevation of the improved boiler. Fig. II is a transverse section taken on the dotted linex as, Fig. I. Fig.

III is a. rear view of the boiler, partly in section. Fig. IV isa plan, also partly in section. Fig. V illustrates a modification in the arrangement of certain parts of the boiler, as hereinafter fully described.

A A are inclined water-tubes expanded in the headers B B, which are of ordinary description, O G are saddles, which consist of polygonal tubes placed transversely of the drums D D, to which they are united by means of circular nozzles c. The headers are connected to the saddles by means of tubes or nipples b, and over each nipple in the arms or extensions of the saddles is situated a plate, plug, or cap, 0, covering a hole which is used in expanding the nipple.

E is a feed-water heater placed between the ends of the saddles to which it is bolted.

F is a superheater connected to the drums Dby means ofpipes (Z and to the feed-water heater by the vertical pipe 6.

G is the cross or transverse drum united to the rear of the longitudinal ones D D by means of nipples 6, (see Fig. 1,) and the heads of the drums D can be either flat, as shown in full lines, or curved to practically fit the crossdrum, as indicated by the dotted lines, Fig. I.

H II are tubes or pipes which form the chief part of the exterior walls of the boiler. These pipes are close together and have nipples f at the upper ends, which are expanded in plugs g in the tubes and also in the drums D and G. The plugs g are only shown in Fig. I and in connection with the drum G. These nipples being much smaller than the tubes, sufficient metal is left between them to give the necessary strength to the drums. The lower ends of the pipes H are plugged and rest on foundation-pieces I. The brick outer walls are denoted byJ andthe central partition-wall by K.

L is the cleaning-opening in the wall K, and its pivoted door is represented by f. lhe side cleaning-openings are denoted by g.

M M are girders supported at the ends by means of columns N, which. rest in sockets h in flanged plates 1; on the brick piers j. The flanged plates 1' prevent dislocation of the bricks in the piers j.

0 O are projecting lugs or trunnions bolted or riveted to the sides of the drums D D, and k k are eyebolts extending through the girders and united to the trunnions by means oflinksll.

It will be understood that the whole boiler proper is sustained by the bolts 70 and links Z, and in such condition as to admit of any movement of the boiler occasioned by expansion and contraction without injury to the brickwork and setting.

The headers 13 B have the ordinary triangular caps, m, on their outer faces and in addition the inner triangular ones, a, to which the central holding-bolts, 0, are secured. By this means a double joint is formed, and the outer one is of the faced description.

I claim as my invention- 1. In awater-tube boiler, the combination, with a longitudinal drum and a series of headers, of an interposed transverse saddle united to the headers by means of nipples and having holes in its upper side over the said nipples covered by removable plates, substantially as specified.

2. In a water-tube boiler, the combination, with a longitudinal drum and a series of headers, of an interposed transverse saddle united to the drum by means of a cylindrical neck or ofoverhead girders, supporting-columns,piers,

and base-plates on the said piers having flanges at their edges and sockets for the columns,

substantially as specified.

6. In a water-tube boiler having a central partition-wall, the said wall provided with a cleaning-opening and a door, substantially as specified.

7. In a water-tube boiler, the longitudinal drum D, united to the transverse drum G by means of nipples, substantially as specified.

8. In a Water-tube boiler, the outer walls of the same, composed of vertical pipes placed practically close together, each pipe being independently united to an overhead drum by means of nipples, substantially as specified.

9. In a water-tube boiler, the outer walls of the same, composed of vertical pipes placed practically close together, each pipe being independently united to an overhead drum by means of nipples and closed at its lower end, substantially as specified.

EDWVARD J. MOORE.

\Vitnesses:

A. L. DUNTON, JOHN DUNBADEN. 

